You have a right to own firearms
Good news! Firearms are a human right, just like everything else these days.
You have the right to protect your life and liberty. Few statements have captured this more timelessly than the Declaration of Independence:
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. – That to secure these rights, Governments are instituted among Men...
In other words, you have an unquestionable right to defend yourself from unprovoked aggression. That means you have an unquestionable right to possess the means to defend yourself.
A right to defend yourself without the right to own the means of defense is nonsense. Imagine someone declaring: "You have the right to defend yourself, but only with your fists." The right to defense would only useful to the very strongest and best-trained among us, and even then would be fraught with risk. That's obviously incorrect. The right to defense must be useful to us all.
The gun is the great equalizer. To cite a 2007 essay:
The gun is the only personal weapon that puts a 100-pound woman on equal footing with a 220-pound mugger, a 75-year old retiree on equal footing with a 19-year old gang banger, and a single guy on equal footing with a carload of drunk guys with baseball bats. The gun removes the disparity in physical strength, size, or numbers between a potential attacker and a defender.
A gun prevents your dependency on the police. You don't need to call 911 and wait. You can defend yourself at any time.
Further, a gun puts an ordinary citizen on equal footing with an agent of state. Just because a government was instituted to protect citizens' rights does not mean it actually does, or always will. In fact, many believe modern government is the greatest threat to citizens' rights.
You have the unquestionable right to defend yourself from unprovoked aggression, no matter from where it originates. That means you have the right to possess firearms as the essential tool of your defense. And it is the government's duty to secure that right. Don't settle for anything less than a full defense of your rights.